Luby is a town in Cheb District in the Karlovy Vary Region of the Czech Republic. It has about 2,200 inhabitants. It is well known for its violin …Luby is a town in Cheb District in the Karlovy Vary Region of the Czech Republic. It has about 2,200 inhabitants. It is well known for its violin-making industry, and was once dubbed the "Austrian Cremona" when Bohemia was part of Austria-Hungary.